Septum



FIG. 1 is an upper perspective view of a septum and showing the design;

FIG. 2 is a lower perspective view of the septum of FIG. 1;

FIG. 3 is a top plan view of the septum of FIG. 1;

FIG. 4 is a bottom plan view of the septum of FIG. 1; and,

FIG. 5 is a side elevational view of the septum of FIG. 1.

The broken lines in the figures immediately adjacent shaded areas represent boundaries of the claimed design; all other broken lines show structure that is not part of the claimed design, but rather show the environment in which the design is associated, or show portions of the article on which the design is applied, that are not considered part of the claimed design. 

CLAIM The ornamental design for a septum, as shown and described. 